Home / 5,400.65-7,451.66-3,161.75

Finding the Fourth Proportional to 5,400.65, 7,451.66 and 3,161.75

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Solution

The fourth proportional to 5,400.65, 7,451.66 and 3,161.75 is: 4,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400.65 : 7,451.66 = 3,161.75 : x
  2. Step 2: Convert to fraction form
    5,400.65/7,451.66 = 3,161.75/x
  3. Step 3: Cross multiply
    5,400.65x = 7,451.66 × 3,161.75
  4. Step 4: Simplify right side
    5,400.65x = 23,560,256.65
  5. Step 5: Solve for x
    x = 23,560,256.65/5,400.65
  6. Step 6: Final answer
    x = 4,362.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.